How to decrypt a message while preserving the signature?
Peter Lebbing
peter at digitalbrains.com
Sun Nov 3 10:15:49 CET 2019
Werner recently mentioned an undocumented command for this.[1]
On 27/08/2019 11:30, Werner Koch via Gnupg-users wrote:
> You can extra the signature from the encrypted+signed data:
>
> gpg --unwrap -d -o SIG <ENC+SIG
>
> and then run
>
> gpgv -o SIGNEDFILE SIG && echo verified!
>
> --unwrap is not documented and has the minor problem that it also keeps the
> compression layer. However, gpgv groks that compression layer and works
> as with a standard signature. The signature is on SIGNEDFILE which gpgv
> outputs for you.
HTH,
Peter.
[1] https://lists.gnupg.org/pipermail/gnupg-users/2019-August/062619.html
--
I use the GNU Privacy Guard (GnuPG) in combination with Enigmail.
You can send me encrypted mail if you want some privacy.
My key is available at <http://digitalbrains.com/2012/openpgp-key-peter>
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